Well, I was able to take care of the compression problem on the '83 vanagon
(many thanks to everyone on the list for their helpful comments), however
now I'm experiencing an intermittant hesitation when driving.  This only
becomes apparent after driving about 10min. and then seems to get
progressively worse.  Im guessing that its something in the fuel injection
system.

I had the van to the dealer and they said there was a problem with the
temperature sensor, which I replaced, yet the problem persists.

Any suggestions on what to check?

Regards,

Brian